<template>
  <PageWrapper title="图片裁剪示例" contentBackground>
    <div class="cropper-container">
      <CropperImage ref="refCropper" src="https://fengyuanchen.github.io/cropperjs/images/picture.jpg" @cropperedInfo="cropperedInfo" style="width:40%" />
      <a-button type="primary" @click="onCropper"> 裁剪 </a-button>
      <img :src="cropperImg" class="croppered" v-if="cropperImg" />
    </div>
    <p v-if="cropperImg">裁剪后图片信息：{{ info }}</p>
  </PageWrapper>
</template>
<script lang="ts">
  import { defineComponent, ref, onBeforeMount, getCurrentInstance } from 'vue';
  import { PageWrapper } from '/@/components/Page';
  import { CropperImage } from '/@/components/Cropper';
  import img from '/@/assets/images/header.jpg';
  export default defineComponent({
    components: {
      PageWrapper,
      CropperImage,
    },
    setup() {
      let vm: any;
      let info = ref("");
      let cropperImg = ref("");

      const onCropper = (): void => {
        vm.refs.refCropper.croppered();
      }

      onBeforeMount(()=>{
        vm = getCurrentInstance();
      })

     function cropperedInfo({ imgBase64, imgInfo }) {
       info.value = imgInfo
       cropperImg.value = imgBase64
     }

      return {
        img,
        info,
        cropperImg,
        onCropper,
        cropperedInfo
      };
    },
  });
</script>

<style scoped>
.cropper-container {
  display:flex;
  justify-content: space-around;
  align-items: center;
}
.croppered {
  width: 50%;
  height: 100%;
}
</style>
